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60. Suppose it costs $30,000 to purchase a new car. The annual operating cost and resale value of a used car are shown below. Assume that you presently have a new car. Determine a replacement policy that minimizes your net costs of owning and operating a car for the next six years.

B D E F H L M N 0 P 5 #3. Problem #16C Node balance constraints Node Netflow Age of car 1 2 3 Resale value 14000 12000 8000 6000 4000 2000 Op Cost 600 1000 1600 2400 3200 4400 Net flow Required Total net cost = Solution: ?? 4 5 6 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Cost of new car 20000 Answer key: 28800 Hint: There are 21 arc (Ctrl Operating costs in year of use: 2 3 4 5 Buy Year Sell Year Age of car 1 6 Resale Cost Net cost Flows 21 22 23 24 25 B D E F H L M N 0 P 5 #3. Problem #16C Node balance constraints Node Netflow Age of car 1 2 3 Resale value 14000 12000 8000 6000 4000 2000 Op Cost 600 1000 1600 2400 3200 4400 Net flow Required Total net cost = Solution: ?? 4 5 6 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Cost of new car 20000 Answer key: 28800 Hint: There are 21 arc (Ctrl Operating costs in year of use: 2 3 4 5 Buy Year Sell Year Age of car 1 6 Resale Cost Net cost Flows 21 22 23 24 25